@chemicalkim: Fractured hand and ribs, seven stitches across the palm of my hand. It was an accident at home due to my carelessness in forgetting to open a valve when I started a pump, resulting in an accident that could’ve been much worse. Upon further investigation, I found similar incidents where the lid of the filter exploded, causing serious harm to others. This serves as a cautionary message to those using this filter: there's no safety release valve or lid mechanism to prevent such accidents. Stay safe.